Abstract
A simple pressing process using a SiC powder, Al₂O₃-Y₂O₃ sintering additive, and polymer microbeads for fabricating cellular SiC ceramics is demonstrated. The strategy for making the cellular ceramics involves: (ⅰ) forming certain shapes using a mixture of a SiC powder, Al₂O₃-Y₂O₃ sintering additive, and polymer microbeads by pressing; (ⅱ) heat-treatment of the formed body to burn-out the microbeads; and (ⅲ) sintering the body. By controlling the microsphere content and sintering temperature, it was possible to adjust the porosity in a range of 16% to 69%. The flexural and compressive strengths of cellular SiC ceramics with ~40% porosity were ~60 MPa and ~160 MPa, respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
